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Shaft struts

Posted: Jan 28th, '15, 23:21
by twonahil
My "70" b31 has 1 3/8" shafts. Will struts take 1 1/2" shafts if I replace cutlass bearing?

Re: Shaft struts

Posted: Jan 29th, '15, 00:07
by CaptPatrick
Yes. The original struts are bored to 1 7/8" for a standard 1 3/8" bearing. You'll need to have them over-bored to 2" for 1 1/2" thin wall bearing by a qualified under water gear machinist and him install the bearings. If installing Duramax™ the I.D. is 1 1/2" and the O.D. 2" & the Buck Algonquin designation is "BOSS"